aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/scripts/python/event_analyzing_sample.py
diff options
context:
space:
mode:
authorKees Cook <[email protected]>2022-06-15 22:23:12 -0700
committerDavid S. Miller <[email protected]>2022-06-17 11:31:18 +0100
commit2c0ab32b73cfe39a609192f338464e948fc39117 (patch)
treed221c6e5ff70eddfd2d029895e490c03d7bd6d12 /tools/perf/scripts/python/event_analyzing_sample.py
parent225b0ed27e6ac523e5e98e7395392446859c7f20 (diff)
hinic: Replace memcpy() with direct assignment
Under CONFIG_FORTIFY_SOURCE=y and CONFIG_UBSAN_BOUNDS=y, Clang is bugged here for calculating the size of the destination buffer (0x10 instead of 0x14). This copy is a fixed size (sizeof(struct fw_section_info_st)), with the source and dest being struct fw_section_info_st, so the memcpy should be safe, assuming the index is within bounds, which is UBSAN_BOUNDS's responsibility to figure out. Avoid the whole thing and just do a direct assignment. This results in no change to the executable code. Cc: "David S. Miller" <[email protected]> Cc: Eric Dumazet <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: Paolo Abeni <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Tom Rix <[email protected]> Cc: Leon Romanovsky <[email protected]> Cc: Jiri Pirko <[email protected]> Cc: Vladimir Oltean <[email protected]> Cc: Simon Horman <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://github.com/ClangBuiltLinux/linux/issues/1592 Signed-off-by: Kees Cook <[email protected]> Reviewed-by: Gustavo A. R. Silva <[email protected]> Tested-by: Nathan Chancellor <[email protected]> # build Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions